MAX628CSA Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The MAX628CSA is a low-side gate driver IC manufactured by Analog Devices Inc./Maxim Integrated, designed for driving N-Channel and P-Channel MOSFETs in power management applications. This device features independent dual-channel configuration with inverting and non-inverting input types, operating across a 4.5V to 18V supply voltage range.

The MAX628CSA is classified as obsolete. Identifying suitable substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production requirements. Active alternatives with equivalent or enhanced electrical characteristics are available from multiple manufacturers.

Substiute Parts

MAX628CSA

Analog Devices Inc./Maxim IntegratedIn Stock: 7191MAX628CSA Datasheet

Current PartRFQ

MAX628CSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2063MAX628CSA+ Datasheet

DirectRFQ

TC4428COA

Microchip TechnologyIn Stock: 24162TC4428COA Datasheet

DirectRFQ

TC4425AVOA

Microchip TechnologyIn Stock: 2309TC4425AVOA Datasheet

MFR RecommendedRFQ

TC4425AVOA713

Microchip TechnologyIn Stock: 3191TC4425AVOA713 Datasheet

MFR RecommendedRFQ

TC4428ACOA

Microchip TechnologyIn Stock: 5474TC4428ACOA Datasheet

MFR RecommendedRFQ

UCC27425D

Texas InstrumentsIn Stock: 1007UCC27425D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX628CSA are grouped based on strict electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

• Driven Configuration: Low-Side (mandatory match)
• Number of Drivers: 2 (mandatory match)
• Gate Type: N-Channel, P-Channel MOSFET (mandatory match)
• Voltage - Supply: 4.5V ~ 18V (minimum requirement; higher ranges acceptable)
• Logic Voltage - VIL, VIH: 0.8V, 2.4V (mandatory match)
• Input Type: Inverting, Non-Inverting (mandatory match)
• Package / Case: 8-SOIC (mandatory match)
• Mounting Type: Surface Mount (mandatory match)

Secondary Compatibility Parameters:

• Current - Peak Output (Source, Sink): Equal or greater than 2A, 2A
• Rise / Fall Time: Equal or faster than 25ns, 20ns
• Operating Temperature: Equal or wider range than 0°C ~ 70°C

All identified substitutes meet the primary criteria. Variations in secondary parameters indicate enhanced performance capabilities suitable for direct replacement.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Identical Electrical Performance): MAX628CSA+ is the direct active equivalent, manufactured by the same supplier with identical electrical specifications. This part is ROHS3 compliant and recommended for new designs requiring exact performance matching.

Functional Equivalents with Reduced Output Current: TC4428COA and TC4428ACOA from Microchip Technology provide functional substitution with peak output current of 1.5A (versus 2A). These parts are suitable for applications where the 2A specification exceeds actual circuit requirements. Both are ROHS3 compliant and actively produced.

Enhanced Performance Alternatives: TC4425AVOA and TC4425AVOA713 offer superior electrical characteristics: 4.5A peak output current and 12ns rise/fall times (versus 2A and 25ns/20ns). Extended operating temperature range (-40°C to 150°C) supports demanding thermal environments. TC4425AVOA713 is supplied in Tape & Reel packaging; TC4425AVOA in Tube packaging. Both are ROHS3 compliant and actively produced.

Alternative Manufacturer Option: UCC27425D from Texas Instruments provides 4A peak output current and faster switching times (20ns/15ns). Supply voltage range is 4V to 15V (narrower than MAX628CSA). Product status is Last Time Buy, indicating limited future availability. ROHS3 compliant.

Compliance Consideration: All substitute parts except the original MAX628CSA are ROHS3 compliant, supporting regulatory requirements for new production.

Frequently Asked Questions (FAQ)

Q: Can TC4428COA replace MAX628CSA in all applications? A: TC4428COA is electrically compatible with identical supply voltage, logic levels, and input/output configuration. Peak output current is 1.5A versus 2A. Substitution is valid if circuit design does not require the full 2A output capability. Verify actual gate drive current requirements before selection.

Q: What is the difference between TC4425AVOA and TC4425AVOA713? A: Both parts have identical electrical specifications. The primary difference is packaging: TC4425AVOA is supplied in Tube; TC4425AVOA713 is supplied in Tape & Reel (TR). Selection depends on assembly process requirements and volume considerations.

Q: Is MAX628CSA+ a direct replacement for MAX628CSA? A: Yes. MAX628CSA+ is the active production equivalent with identical electrical performance. The primary difference is RoHS compliance status (ROHS3 Compliant versus non-compliant). Pinout, package, and functional characteristics are identical.

Q: Why is UCC27425D listed as Last Time Buy? A: Last Time Buy status indicates the manufacturer has announced end-of-life for this product. Existing inventory may be available, but future production is not guaranteed. For new designs, select from actively produced alternatives.

Q: Can I use TC4425AVOA in place of MAX628CSA? A: Yes. TC4425AVOA exceeds MAX628CSA specifications in output current (4.5A versus 2A) and switching speed (12ns versus 25ns/20ns). The wider operating temperature range (-40°C to 150°C) provides additional design margin. All primary compatibility criteria are met. This substitution is valid and offers performance enhancement.

Q: What are the package compatibility requirements? A: All substitute parts use 8-SOIC (0.154", 3.90mm Width) surface mount packaging, identical to MAX628CSA. PCB layout and assembly processes require no modification for package-compatible substitutes.

Q: Does supply voltage range affect substitution suitability? A: MAX628CSA operates 4.5V to 18V. UCC27425D operates 4V to 15V. If circuit design requires operation above 15V, UCC27425D is not suitable. All other substitutes support the full 4.5V to 18V range or higher.